Born as the eldest son of a farm family in Hongseong-gun, Chungcheongnam-do in December 1932, he graduated from the Law School of Seoul National University and worked as a reporter for the JoongAng Ilbo and Segye Ilbo for over two years, with a sense of duty to do something for the family, society, and even the country. In October 1958, when the scars of Korean War were not yet gone, he decided to study abroad in the United States. He completed his master's degree in public administration and political science at Fresno State University in California and the University of San Francisco (USF) in the United States for about 10 years until 1967. At that time, Hyundai Motor Company was formed and Chairman Chung Ju-young participated, and he began to develop an appreciation for the automobile industry in his home country, becoming an unsung hero who created the early 'Pony' myth.

Afterwards, served as senior vice president of Hyundai Motor Company and president of Hyundai Corporation, in August 1981, he took office as president of DY Deokyang, a Korean automobile He entered the auto components industry, which is the cornerstone of industrial development, and devoted himself to efficient operation system and unique technology development with excellent leadership for about 25 years until his death in August 2006, building competitiveness and raising the company to the ranks of world's leading small and medium-sized enterprises (SMEs).

Chairman Joo-Won Yoon tried to respect all members with the management philosophy of "fun, meaningful, grateful" always in mind. The countless experiences of hardship he experienced as a poor student has been sublimated into the leadership of 'humility' and 'respect' that he pursued, from Hyundai Motor to the chairman of DY Deokyang upon his return to Korea. In addition, with the HR philosophy of '疑人不用用人不疑', which is 'don't use if in doubt, and never doubt once you decide to use ', while nurturing the best talent in Korea, it emphasized the sense of duty that Korean entrepreneurs should have.

As such, his passionate 'family love' and the national and social 'mission' that he should have as a businessman has been the driving force behind the development of the DY Deokyang for the past 40 years. It is becoming a huge cornerstone of our steps toward the future so that DY Deokyang can challenge ourselves and once again become a global mobility solution provider within today’s competitive global stage.